Small lines used to tie the sails when they are flaked or furled.

On wooden boats, a line of planking running from the bow to the stern along the hull.

Said of anchor when it lifts clear of the bottom.

The essential fittings and equipment of a ship, such as anchors, rigging, masts, davits, derricks, winches, etc., excluding her consumable stores such as water, fuel and victuals.

Any steel bar or column, fitted vertically, to support a deck, or any part of a ship's structure. Also called a stanchion.

Another name for the bo'sun's whistle.

Going toward the direction of the wind, by alternate tacks.

In lore, the flag flown by a pirate ship - a white skull on a black background with crossed bones below the skull - although there is no evidence that such a flag was ever flown.

Compartment for the storage of oil or other fuel.

Percentage of time a compressor unit can operate at full load over a thirty minute period.

To calculate your position using time, the position of celestial bodies, and mathematical tables. Position is determined by measuring the apparent altitude of one of these objects above the horizon using a sextant and recording the times of these sighting ...

A void or empty space separating two or more compartments for the purpose of insulation, or to prevent the liquid contents of one compartment from entering another in case of a leak.

A person or firm who transacts all business in a port on behalf of shipowners or charterers. Also called shipping agent; agent.

The amount of atmospheric dust which a filter will capture.

A seaman's personal "painter" is his lifeline, and if it is severed, he dies.

A metal pin by which the plating and other parts of iron and steel vessels are joined. Rivets are known by their heads, such as: Flush, pan, snap, plug, tap, countersunk, mushroom, and swollen neck.

A large net with its mouth held open, towed by a trawler along the bottom to catch bottom fish.

When reciprocating compressors run, the moving parts such as pistons, rods, crossheads, connecting rods are repeatedly accelerated and retarded. These velocity changes set up pulsating inertia forces. The forces are of the first and second order. The firs ...

Is a heat exchanger located immediately preceding an ejector to condense and remove a portion of the vapor in the mixture and thus reduce the total lb/hr to be handled.

Also stability sail or riding sail. Any small sail set to help the boat maintain its direction without necessarily moving, as when at anchor or in heavy weather.